The fatbike lets me ride in snow when I couldn't ride the regular mountain bike. It also lets me ride when the trails are wet and muddy without leaving ruts and damaging the trails like a regular mountain bike.

I got to borrow one the other day, the guy who loaned it me for the day said if he had to clear out his bike's the only one he'd keep is the fat bike, I thought that was a bit of a stretch, went out in the snow{Canada}, best fun I've had on a bike for as long as I can remember, rode nothing like I expected and can't wait to buy one, I'm even looking at which one of the fleet will be sacrificial, and for the record I'm not niche at all